VEHICLE STABILITY CONTROL SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Tech Tips

The vehicle stability control system troubleshooting procedures are based on the premise that the CAN communication system is functioning normally. Check the CAN communication system first before troubleshooting the vehicle stability control system.
*: Use the GTS.

VEHICLE BROUGHT TO WORKSHOP

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CUSTOMER PROBLEM ANALYSIS
1. Interview the customer and confirm the trouble Click here.
  
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CHECK DTC AND FREEZE FRAME DATA*

Check and record DTC and Freeze Frame Data Click here for DTC Check/Clear, and Click here for Freeze Frame Data).
Clear the DTC and Freeze Frame Data Click here for DTC Check/Clear, and Click here for Freeze Frame Data).

Reconfirm the DTC.

Reconfirm the DTC based on the recorded DTC and Freeze Frame Data Click here for DTC Check/Clear, and Click here for Freeze Frame Data).

Tech Tips

If DTC U0100, U0124 or U0126 is output together with a CAN communication DTC, first check the appropriate sensor for a momentary open circuit Click here.
If there is no response from the skid control ECU (brake actuator assembly), inspect the +BS circuit of the skid control ECU (brake actuator assembly) Click here.

Result

Result	Proceed to
DTC is output	A
DTC is not output (Problem symptom does not occur)	B
DTC is not output (Problem symptom occurs)	C

B

Go to step 5

C

Go to step 6

A

DIAGNOSTIC TROUBLE CODE CHART
1. Proceed to Diagnostic Trouble Code Chart Click here.
  
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  Go to step 7
SYMPTOM SIMULATION
1. Proceed to Check for Intermittent Problems Click here.
  
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PROBLEM SYMPTOMS TABLE
1. Proceed to Problem Symptoms Table Click here.
  
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CIRCUIT INSPECTION*

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IDENTIFICATION OF PROBLEM

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REPAIR OR REPLACE

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CONFIRMATION TEST*

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END